William K. Bennett''s career in the field of electrical engineering has spanned more than 50 years. Since the 1960s, he has worked with organizations like the Navy, General Electric, Exide, Hitran, and others. At HindlePower, he led the development of electronic, single-phase and three-phase microcontroller battery chargers and a very high-current DC power supply for plasma applications. CHARGE! is a compendium of the knowledge Mr. Bennett gained during his many years of hands-on experience with batteries and battery applications. Now retired, Mr. Bennett lives in Yardley, Pennsylvania, where he enjoys crossword puzzles, listening to opera, and a late-evening dram of single malt with a little dark chocolate.